Manufacturer: Logitech. The MK260 Desktop Keyboard and mouse features advanced 2.4 GHz wireless so you can work or play in more places, the long range wireless connection virtually eliminates delays, dropouts and interference. The smart power management means less hassle with a 24 month keyboard battery life and 5 month mouse battery life (Battery life may vary based on user and computing conditions). The keyboard creates a natural typing feel that keeps you comfortable hour after hour and the contoured mouse is designed to fit comfortably in your hand. With plug and play simplicity setup takes seconds. You simply plug the wireless receiver into a USB port on your computer and start using your keyboard and mouse right away without software!